%0 Journal Article %A V. G. Drinfeld %A V. V. Sokolov %T Equations that are related to the Korteweg-de Vries equation %J Doklady Akademii Nauk %D 1985 %P 29-33 %V 284 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1985_284_1_a4/ %G ru %F DAN_1985_284_1_a4